NP510A (NEMA FR-4) combines a woven glass fabric and an epoxy resin laminate (Tg approximately 130°C) that contains bromine. The product provides consistent quality and good electrical properties under dry and humid conditions, as well as high flexural, impact, and bond strength at room temperatures. This product is suitable for a variety of structural, high humidity, and electrical insulation applications, which include terminal boards, lapping carriers, and disc and microelectronics polishing. NP510A complies with the requirements of MIL-I-24768/27, Type GEE-F.

NP510A (NEMA FR-4) combines a woven glass fabric and an epoxy resin laminate (Tg approximately 130°C) that contains bromine. The product provides consistent quality and good electrical properties under dry and humid conditions, as well as high flexural, impact, and bond strength at room temperatures. This product is suitable for a variety of structural, high humidity, and electrical insulation applications, which include terminal boards, lapping carriers, and disc and microelectronics polishing. NP510A complies with the requirements of MIL-I-24768/27, Type GEE-F.

Brominated epoxy resin systems used in FR-4 and FR-5 materials were originally created to stop or retard potential fire hazards caused by over-heating or electrical failure resulting in arcing. While HBr is very effective at flame retardation, the resulting white smoke (HBr) can corrode copper, standard grade mild and stainless steels and most other metals. In 1998 NEMA updated their standards to differentiate G-10 and G-11 from FR-4 and FR-5. This update specifically excludes the use of bromine or other halogen flame retardants in the production of G-10 or G-11.

Norplex-Micarta is one of North America’s leading producers of thermoset composite pre-pregs, sheets, and shapes. These hybrid and multi-material solutions are prized for their design flexibility, consistency, and value.